Amiga 1200 on the bench with black screen, no power led blink and no disk drive ticking. DiagROM via serial output works, but no left mouse button. Let’s see.. First thought was U7 (CIA) because left mouse button and no FDD ticking sound. Removed U7, placed a PLCC socket and added a new CIA (8520) […]
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Pioneer CLD-515 Power Supply Fix
Some WARNINGS before you start to fix your own PSU: If you have no experiences with repairs like this DON’T DO IT! If you try to fix it, it is at your own risk! Beware of the HIGH 300V+ (DC) voltages!! Beware that some capacitors can hold high voltages for some while, unload them with […]
Videopac G7200 – display not good and no audio
Got a Videopac G7200 on my bench. problems: Display shows horizontal bar No audio Power switch broken Display This is what the display is showing. \ Problem: Vertical Deflection is not good, good chance that a few capacitors are worn out. Lets have a look on the schematic: C51 must be 100uF, reads 62,77uF. Replaced […]
CD32 – No composite and glitchy afterwards
CD32 came in for repair, has been recapped for 4-5 years ago. No composite signal and S-Video totally distorted. Checked the signal on the CXA1145, they looked good, also check signals from CXA to connectors, everything looks good. But still no composite and distorted s-video. I decided to replace the CXA1145, delayline, band filter. […]
Amiga CD32 S-Video no colour
I got an Amiga CD32 without colour on the S-Video output on my work bench. Schematic of S-Video ouput. I tested input signal (Base) of the Q282 2N3904 (NPN) transistor, result is ok (see picture above). Ouput signal: That’s not what it should be, so replaced transistor Q282, result after replacement is still the same. […]